It's no secret that the Wii U's controversial Gamepad controller often goes unutilized. Sometimes this is a good thing; it's simply not necessary in games like, say, Tropical Freeze.
Nevertheless, there are a few games where it's used to meaningfully improve the experience, such as Super Mario Maker, ZombiU, Rayman Legends, or 5-player splitscreen in Sonic Racing Tranformed. Fatal Frame is one such game, and honestly I think it's the most effective implementation of Nintendo's oddball controller yet.
In the game, your character exorcizes ghosts by taking photographs of them using a special camera. When doing so, the Gamepad basically doubles as said camera; the screen on the pad serves as your viewfinder, and you look around with it using either the gyro, or if you don't like motion controls, the right analogue stick. Even using the right trigger to snap pictures is in a similiar position to the button on a traditional camera.
This created a brilliant synergy between me and my character as I was physically doing what he/she was doing, which is particularly beneficial in a horror game, where immersion heightens the fear factor. Playing in a dark room alone, trying to line up a well framed shot while a freakish ghoul lurched towards me, its moans emanating from the Gamepad's speaker as if the horror was leaking out of the game into the real world, was unsettling in the best possible way.